Merge pull request #3530 from lonvia/clean-use-of-os-environ

[nominatim.git] / docs / admin / Import.md

diff --git a/docs/admin/Import.md b/docs/admin/Import.md
index b31066d34799f5b3f355fe57e7561aa6aa9bac92..5a365b236b5897adcae2e6423369b5b2426174db 100644 (file)
--- a/docs/admin/Import.md
+++ b/docs/admin/Import.md
@@ -14,15 +14,15 @@ to a single Nominatim setup: configuration, extra data, etc. Create a project
 directory apart from the Nominatim software and change into the directory:
 
 ```
-mkdir ~/nominatim-planet
-cd ~/nominatim-planet
+mkdir ~/nominatim-project
+cd ~/nominatim-project
 ```
 
 In the following, we refer to the project directory as `$PROJECT_DIR`. To be
 able to copy&paste instructions, you can export the appropriate variable:
 
 ```
-export PROJECT_DIR=~/nominatim-planet
+export PROJECT_DIR=~/nominatim-project
 ```
 
 The Nominatim tool assumes per default that the current working directory is
@@ -74,15 +74,18 @@ but it will improve the quality of the results if this is installed.
 This data is available as a binary download. Put it into your project directory:
 
     cd $PROJECT_DIR
-    wget https://nominatim.org/data/wikimedia-importance.sql.gz
+    wget https://nominatim.org/data/wikimedia-importance.csv.gz
+    wget -O secondary_importance.sql.gz https://nominatim.org/data/wikimedia-secondary-importance.sql.gz
 
-The file is about 400MB and adds around 4GB to the Nominatim database.
+The files are about 400MB and add around 4GB to the Nominatim database. For
+more information about importance,
+see [Importance Customization](../customize/Importance.md).
 
 !!! tip
     If you forgot to download the wikipedia rankings, then you can
     also add importances after the import. Download the SQL files, then
-    run `nominatim refresh --wiki-data --importance`. Updating
-    importances for a planet will take a couple of hours.
+    run `nominatim refresh --wiki-data --secondary-importance --importance`.
+    Updating importances for a planet will take a couple of hours.
 
 ### External postcodes
 
@@ -153,7 +156,7 @@ if you plan to use the installation only for exports to a
 [photon](https://photon.komoot.io/) database, then you can set up a database
 without search indexes. Add `--reverse-only` to your setup command above.
 
-This saves about 5% of disk space.
+This saves about 5% of disk space, import time won't be significant faster.
 
 ### Filtering Imported Data
 
@@ -228,7 +231,7 @@ to load the OSM data into the PostgreSQL database. This step is very demanding
 in terms of RAM usage. osm2pgsql and PostgreSQL are running in parallel at 
 this point. PostgreSQL blocks at least the part of RAM that has been configured
 with the `shared_buffers` parameter during
-[PostgreSQL tuning](Installation.md#postgresql-tuning)
+[PostgreSQL tuning](Installation.md#tuning-the-postgresql-database)
 and needs some memory on top of that. osm2pgsql needs at least 2GB of RAM for
 its internal data structures, potentially more when it has to process very large
 relations. In addition it needs to maintain a cache for node locations. The size
@@ -299,6 +302,9 @@ To run Nominatim via webservers like Apache or nginx, please continue reading
 
 #### Testing the PHP frontend
 
+!!! danger
+    The PHP fronted is deprecated and will be removed in Nominatim 5.0.
+
 You can run a small test server with the PHP frontend like this:
 
 ```sh